Packino-kiug



I. F. KYTLICA.x

PACKING RING.

APPLlcATxoN FILED ocT.2\, 191s.

1,334,764. Patented Mar. 23, 1920.

Lasagna..

Application tiled. llctober al,

To all wko/1t t may concern Be it lrnown that l, Joran F. lilr'rnroa, a citizen of the United States, and a resident of Chicago, in the county oit @oohL and State ot lllinois, have invented certain new and useful lmprovenients in Packing-Rings, of which. the following is a speciiication.

This invention relates to improvements in packing rings ot the composite type employed in connection with. reciprocating pistons in the cylinders of engines or motors, and while it is more particularly intended for use in connection with the pistons ot steam and internal combustion engines7 yet, itI is applicable for use on the pistons oit compressors or engines in which any lrind ot elastic l'luid is used as a motive agent, and it consists in certain peculiarities ot the construction, novel arrangement and operation of the various parts thereol as will be hereinaiiter more fully set forth and specifically claimed.

The objects of the invention are to urnish a paclring ring ot such construction, arrangement and operation ot its parts that when the ring is seated .or mounted on the piston and within the cylinder a substantially hermetic joint will be termed, 'thereby etlectually avoiding leakage between the piston and cylinder; to provide a selt adjusting form ot ring, and one in which its parts will automatically adjust 'themselves to the wear thereot, and generally, to pro vide a paclring ring which will be taultless, can be easily applied, readily removed or replaced, inexpensive in construction, strong, durable and economical in regard to main.- tenance. Other objects, advantages and desirable teatures ot the invention will be disclosed in the subjoined description and enplanation.

ln the accompanying drawing which serves to illustrate an embodiment et the invention,

Figure i, is a plan view otthe composite ring showing the parts thereol in about the positions they will occupy when the ring is seated for operation on a piston. when inl a cylinder.

Fig. 2, is a greatly enlarged sectional view taken on line 2, 2, ot Fig. l, looking in the direction indicated by the arrows showing the ring shortened tor the convenience ot illustration and the relative position or' its parts with respect to the external wall ot the piston which is indicated by dotted lines.

Speciication of Letters Patent.

with No. 5,959,067.

llig. 3, is a similar view of a part ot the ring showing about the position ot the l'partswhich they will assume when assembled on the piston and. before being placed in the cylinder, and

Fig. Il, is a similar view to that shown in lig. 3 but illustrating a modiiication in the construction ot the ring.

lvilre reference numerals refer to lilre parts throughout the different views of the drawings.

nlhe composite packing ring is designated., as a whole, by the numeral 5, and is shown in. Fig. l, ot the drawing, with its parts assembled but detached. trom the piston and cylinder. rl`he piston 6 is provided with a circumferential recess or groove 7 on its enN terior and iear one ot the ends thereof in which the packing ring is seated. 'lhis recess or groove is angular in cross-section. and has its end adjacent to the end of the piston closed by a llange or plate 8 mounted on the piston, which llange is ot the same sise in circuinterence as the external. wall of the latter. 'lfhe inner surface 9 ot the flange il is disposed in parallelism with the opposite wall l() ot the groove 7, and at a right anglo to the vertical or inner wall thereot as is clearly shown in liig.. 3 ol the drawing, thus giving a rectangular form in cross-section to the groove 7 olf' the piston. rlhis ilange may be secured the piston 6 by means ot screws ll, as shown, or it may be termed integrally with the piston as is obvious.

located in 'the groove 7 around., yet spaced a slight distance trein the vertical or longitudinal wall l2 thereonis an enpansible ring or member 'i3 ot the packing, which will be hereinafter called the expander or inner ring. shown in Fig. l ot `the drawing `this ring is split or broken and has its ends lt slightly separated. lt will also-be observed by reference to said ligure that it is eccentrically tapered toward' its ends ior the purpose ot adording uniformityot action and augmenting its resiliency and that its thickest portion is located diametrically opposite the space between the endsol said ring. By relerence to Figs. 2 and 3- ot the drawing it will be seen and understood that the expander ring 13 has outwardly inclined `laces l5 each ot' which is `inpvided with a pair ot steps or shoul ders .lo against which the steps or shoulders ll' on the inner surfaces ot the intermediate rings 18 will rest under certain conditions, to the end, that said interi'uediate rings, as well as, the Outer rings 19 will be more positively f/orced into intimate contact at their outer faces with the inner wall of the cylinder. By providing the inclined outer Jfaces of the spring expanderl ring 13 with the steps or shoulders 16 the area of said outer faces will be increased and the said ring` will be made more resilient than if said 'faces were in unbroken inclines. Each ot the intermediate rings 1S is split, as shown, and have their ends 20 spaced apart and located at points about diainetrically opposite the space between the ends 1-1- olf the expander ring upon the opposite sides oi which they are located, all of" which is clearly shown in Figs. 1 and 2 of the drawing. Each of the rings 18 has its outer face outwardly inclined as at :21, and provided at ythe inner edge oi said inclined lface with a step or shoulder S22 to rest a `ainst the shoulders on the outer split rings 19, one of which is located on eachv of the intermediate rings. Each of the outer rinus 19 is substantially triangular in cross-section as shown, and has its face adjacent to the ring 18 .on which it is mounted oi corresponding shape to that of the adjacent face of said intermediate ring and its outer :tace or a shape to correspond with the shape oi? the inner surface of the cylinder against which it is adapted to contact.

The ends 24 of each of the outer rings 19 are spaced apart and are located so that the space therebetween will coincide or register with the space between the ends 14rof the expander ring (see Fig. l of the drawing).

Each of the intermediate rings 18 is provided at a point about diametrically opposite the space between its ends with a pin 25 which projects from each of the faces of the ring` in which it is located so that its ends will extend between the ends le of the expander ring and the ends 9A of the outer .ring` located on said intermediate ring. By this arrangement it is evident that as the intermediate rings are interposed between the outer rings 19 and the expander ring 13 in such a way that their unbroken surfaces will lie between the space between the ends of the expander ring and. the space bet-ween the ends of the outer rings in which position they will be maintained bv the projections 25, the passage of fluid will be absolutely prevented. The pins or projections 25 on the intermediate rings being extended into the space between. the ends of the expander ring and the spaces between the ends of lthe outer rings will prevent the circumferential movement o'l' said rings with respect to one another to any great extent as is manifest. The several rings or the composite or packing ring are oi"H suilicient size that when they are contracted so that their ends will meet the inner or expander ring will be located at a slight distance from the inner wall or' the groove 7 of the piston. The spring` can be sprung into place in the groove oi the piston, or it a removable flange 8 is employed, they can be slipped over the ends of the piston before said llangre is secured in place.

In Fig'. d of the drawingl is shown a modii'ication in the construction oiI the ring which consists in employing an expander ringr 13 havingv a single outwardly inclined face 15 instead of two outwardly inclined laees as in the other construction. This single Jface is provided with steps 17 as in the other construction. rllhe other lratures or elements of the modified iorm new under consideration are oli the same construction and arrangement as that lirst above described except that only one oli the intermediate rings and one of the outer rings is employed. This modiication will be lound very useful in small engines or motors.

Having' thus 'fully described my invention. what l claim as cw and desire to sel-ure h v liet-ters Patent. is-

1. The combination with a pistou having' an annular groove, oil' :i split inner Ispi-ingr cxpainler ring' located in said groour and havingan outer inclined iacc and ils ends spaced apart, the inclined 'fare bciugr stepped to provide oll'set parallel surfaces. a split intermeir iate ring' haringl its inner lace inclined and stepped coincident to (he cx pander ring' and fittingr against tlul inclined face of the expaiider ringand its outer tare inclined and stepped, a split outer ring;` subA stantially triangular in cross'seetion and having` its inner surface inclined and littinu' against the outer surface o1 the :intermediate ring, and a transversely disposed `inojectiou on each oil1 the iaces of the interni edia te rin gr. one oi said projections beinelocated ben tween the ends o'l` the outer ringjr and the other between. the ends ol. the expander ring.

2. The combination with a piston haring' an annular Agroove, olf a split inner springr expander ring located in said groove and having an outer inclined face and its ends spaced apart, the inclined face beine' stepped to provide offset parallel surfaces. said ringI being eccentrically tapered toward its ends. a split intermediate ring having' its inner face inclined and stepped coincident to the expander ringand itting against the iuelined 'face oli the expander ring and its outer lace inclined and stepped, a split outer ring' substantially triangular in eross-sectiou and havin@r its inner surilice inclined and 'littinn' against the outer surface ol" thc iulermediate ring", and a transversely disposed projection on each of the faces olf' the intermediate riugr, one uit said projections beingr Sli lll() located between the ends of the outer ring and the other between the ends of the expander ring.

3. The combination with a piston havingl an annular groove, of a split in ner spring y expander ring located in said groeve and having outer inclined faces offset and in parallelism, a split intermediate ring having its inner face inclined and stepped and fitting against each of the inclined faces of the expander ring, each of said intern'iediate rings having its outer face inclined and stepped, a split enter ring substantially triangular in cross-section and l'iaving its inner surface inclined and fitting against the outer surface of each of the intermediate rings, and a transversely disposed projection on each of the faces of each of the intermediate rings, the projections on the inner faces of the intermediate rings being located between the ends of the expander ring and the projections on the outer surface of each of the intern'iediate rings being located between the ends of the outer rings.

t. rThe combination with a. piston haring an annular groove, of a split inner spring expander ring located in said groove and having outer inclined faces offset and in parallelism, said ring being eccentrically tapered toifafard its ends, a split intermediate ring having its inner face inclined and stepped and lit-ting aainst each of the incline-d faces of the expander ring, each of said intermediate rings having its outer face inclined and stepped, a. split outer ring substantially 'triangular in cross-section and having its inner surface inclined and fitting against the outer surface of each of the intermediate rings, and a transversely disposed projection on each of the faces of each of the intermediate rings, the projections on the inner faces of the intermediate rings being located between the ends of the expander ring and the projections on the outer surface of each of the intermediate rings being located between the ends of the outer rings.

5. A packing ring, consisting of a split inner spring expander ring adapted for location circumferentially on a cylindrical piston, said ring having inclined faces offset and in parallelism, a. split intermediate ring having its inner face inclined and stepped and fitting against each of the inclined faces of the expander ring, each of said intermediate rings having its outer face inclined and stepped, a split outer ring substantialli7 triangular in cross-section and having its inner surface inclined and fitting against the outer surface of each of the intermediate rings, and a t ansversely disposed projection mounted on each of the intermediate rings and extended from each of the faces thereof, the projections on the inner faces of the intermediate rings being located between the ends of the expander ring and the projections on the outer surface of each of the intermediate rings being located between the ends of the outer rings.

JOHN F. KYTLICA.

Witnesses:

CHAS. C. TILLMAN, CECILIA C. CASEY. 

